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      1 /*
      2  * ProGuard -- shrinking, optimization, obfuscation, and preverification
      3  *             of Java bytecode.
      4  *
      5  * Copyright (c) 2002-2014 Eric Lafortune (eric (at) graphics.cornell.edu)
      6  *
      7  * This program is free software; you can redistribute it and/or modify it
      8  * under the terms of the GNU General Public License as published by the Free
      9  * Software Foundation; either version 2 of the License, or (at your option)
     10  * any later version.
     11  *
     12  * This program is distributed in the hope that it will be useful, but WITHOUT
     13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
     15  * more details.
     16  *
     17  * You should have received a copy of the GNU General Public License along
     18  * with this program; if not, write to the Free Software Foundation, Inc.,
     19  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
     20  */
     21 package proguard.classfile.editor;
     22 
     23 import proguard.classfile.attribute.*;
     24 import proguard.util.ArrayUtil;
     25 
     26 /**
     27  * This class can add bootstrap methods to a given bootstrap methods attribute.
     28  * Bootstrap methods to be added must have been filled out beforehand.
     29  *
     30  * @author Eric Lafortune
     31  */
     32 public class BootstrapMethodsAttributeEditor
     33 {
     34     private BootstrapMethodsAttribute targetBootstrapMethodsAttribute;
     35 
     36 
     37     /**
     38      * Creates a new BootstrapMethodsAttributeEditor that will edit bootstrap
     39      * methods in the given bootstrap methods attribute.
     40      */
     41     public BootstrapMethodsAttributeEditor(BootstrapMethodsAttribute targetBootstrapMethodsAttribute)
     42     {
     43         this.targetBootstrapMethodsAttribute = targetBootstrapMethodsAttribute;
     44     }
     45 
     46 
     47     /**
     48      * Adds a given bootstrap method to the bootstrap methods attribute.
     49      * @return the index of the bootstrap method.
     50      */
     51     public int addBootstrapMethodInfo(BootstrapMethodInfo bootstrapMethodInfo)
     52     {
     53         targetBootstrapMethodsAttribute.bootstrapMethods =
     54             (BootstrapMethodInfo[])ArrayUtil.add(targetBootstrapMethodsAttribute.bootstrapMethods,
     55                                                  targetBootstrapMethodsAttribute.u2bootstrapMethodsCount,
     56                                                  bootstrapMethodInfo);
     57 
     58         return targetBootstrapMethodsAttribute.u2bootstrapMethodsCount++;
     59     }
     60 }